<template>
  <section>
    <!--工具条-->
    <el-col :span="24" class="toolbar" style="padding-bottom: 0px;">
      <el-form :inline="true">
        <el-form-item>
          <el-input v-model="keyword" placeholder="请输入员工名称"></el-input>
        </el-form-item>
        <el-form-item>
          <el-button type="warning" v-on:click="keywordQuery">查询</el-button>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" @click="handleAdd">新增</el-button>
        </el-form-item>
      </el-form>
    </el-col>

    <!--列表v-loading="listLoading"
    :data="employees" -表格数据
    v-loading="listLoading" -> 加载圈
    @selection-change="handleSelectionChange" -> 批量删除
    highlight-current-row  -> 选择一行数据，变亮
    -->

    <el-table :data="employees" v-loading="listLoading"
              @selection-change="handleSelectionChange" highlight-current-row
              style="width: 100%;" :row-key="SpreadPages">
      <!--多选框-->
      <el-table-column type="selection" width="55" :reserve-selection="true"/>

      <el-table-column type="index" width="70" label="序号"/>
      <el-table-column prop="username" label="员工名称" width="120"/>
      <el-table-column prop="phone" label="员工电话" width="120"/>
      <el-table-column prop="email" label="员工邮箱" width="120"/>
      <el-table-column prop="age" label="员工年龄" width="120" sortable/>
      <el-table-column label="员工状态" width="120">
        <template v-slot="scope">
          <span v-if="scope.row.state === 1" style="color: green">启用</span>
          <span v-else="scope.row.state === 0" style="color: red">禁用</span>
        </template>
      </el-table-column>
      <el-table-column prop="departmentName" label="所属部门" width="120"/>
      <el-table-column prop="roleName" label="角色权限" width="120"/>
      <el-table-column prop="logininfoName" label="登录信息" width="120"/>
      <el-table-column prop="shopName" label="店铺名称" width="120"/>
      <el-table-column label="操作">
        <template v-slot="scope">
          <el-button size="small" @click="handleEdit(scope.row)">编辑</el-button>
          <el-button type="danger" size="small" @click="handleDel(scope.row)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>


    <!--工具条-->
    <el-col :span="24" class="toolbar">
      <el-button type="danger" :disabled="this.sels.length === 0" @click="handlePatchDel">批量删除</el-button>
      <el-pagination @size-change="handleSizeChange"
                     @current-change="handleCurrentChange" :current-page="currentPage"
                     :page-sizes="[5, 10, 15]" :page-size="pageSize" layout="total, sizes, prev, pager, next, jumper"
                     background
                     :total="totals" style="float:right;">
      </el-pagination>
    </el-col>

    <!--添加或修改界面-->
    <el-dialog :title="title" :visible.sync="saveFormVisible" :close-on-click-modal="false" @open="handleDialogOpen">
      <el-form :model="saveForm" label-width="80px" :rules="saveFormRules" ref="saveForm">

        <el-form-item label="员工名称" prop="username">
          <el-input v-model="saveForm.username" auto-complete="off" @focus="clearCurrentValidate('username')"/>
        </el-form-item>
        <el-form-item label="员工电话">
          <el-input v-model="saveForm.phone" auto-complete="off"/>
        </el-form-item>
        <el-form-item label="员工邮箱">
          <el-input v-model="saveForm.email" auto-complete="off"/>
        </el-form-item>
        <el-form-item label="登录密码" prop="password" v-if="saveForm.id==null">
          <el-input v-model="saveForm.password" auto-complete="off" @focus="clearCurrentValidate('password')"></el-input>
        </el-form-item>
        <el-form-item label="员工年龄">
          <el-input v-model="saveForm.age" auto-complete="off"/>
        </el-form-item>

        <el-form-item label="所属部门" prop="">
          <el-select v-model="saveForm.departmentId" placeholder="请选择所属部门">
            <el-option
                v-for="item in DepartmentList"
                :label="item.name"
                :value="item.id">
              <span style="float: left">{{ item.name }}</span>
            </el-option>
          </el-select>
        </el-form-item>


        <el-form-item label="角色权限">
          <el-select v-model="saveForm.roleId" placeholder="请选择店铺名称">
            <el-option
                v-for="item in roles"
                :label="item.name"
                :value="item.id">
            </el-option>
          </el-select>
        </el-form-item>

        <el-form-item label="部门状态">
          <el-radio-group v-model="saveForm.state">
            <el-radio class="radio" :label="1">启用</el-radio>
            <el-radio class="radio" :label="0">禁用</el-radio>
          </el-radio-group>
        </el-form-item>

      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click.native="saveFormVisible = false">取消</el-button>
        <el-button type="primary" @click.native="saveSubmit">提交</el-button>
      </div>
    </el-dialog>
  </section>
</template>

<script>

export default {
  data() {
    return {
      //1.分页查询相关数据
      totals: 0,//总记录条数
      currentPage: 1,//当前页,要传递到后台的
      pageSize: 5, //每页显示多少条
      employees: [], //当前页数据

      listLoading: false, //加载圈

      title: '',

      //2.高级查询相关数据
      keyword: '',
      //4.批量删除相关数据
      sels: [], //存储多选记录

      //5.添加和修改相关数据
      saveFormVisible: false,
      saveForm: {
        id: null,
        username: '',
        phone: '',
        email: '',
        password:'',
        age: null,
        state: 1,
        departmentId: null,
        roleId: null,

      },

      DepartmentList:[],//下拉框获取t_department表所有数据
      roles:[],//下拉框获取t_role表所有数据

      //添加和修改校验规则-表单项校验
      saveFormRules: {
        username: [
          {required: true, message: '请输入员工名称', trigger: 'blur'}
        ],
        password: [
          {required: true, message: '请输入登录密码', trigger: 'blur'}
        ],
      },

    }
  },
  methods: {


    //跨页操作
    SpreadPages(row) {
      return row.id
    },
    //1.分页查询相关方法
    //1.1.获取列表数据
    getTableData() {
      this.listLoading = true //开启加载圈
      var params = {
        "currentPage": this.currentPage, //点击的当前第几页
        "pageSize": this.pageSize,   //当前页需要显示多少条数据
        "keyword": this.keyword    //模糊查询 ->关键字
      }
      this.$http.post("/employee", params).then(request => {
        //接收参数添加到表格中(employees),request.data ->固定写法
        this.employees = request.data.list
        this.totals = request.data.totals
        this.listLoading = false //关闭加载圈
      })
    },


    //1.2.选择第几页时触发
    handleCurrentChange(currentPage) {
      this.currentPage = currentPage //1 -> 2
      this.getTableData()
    },
    //1.3.选择每页显示记录条数时触发
    handleSizeChange(pageSize) {
      this.pageSize = pageSize
      this.getTableData()
    },
    //2.高级查询相关方法
    keywordQuery() {
      this.currentPage = 1; //从第一页开始查询
      this.getTableData();
    },

    //3.删除相关方法
    //row -> 当前行对象 获取一行数据
    handleDel(row) {
      this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        this.$http.delete("/employee/" + row.id,).then(res => {
          if (res.data.success) {
            //处理当前页->算总页数 Math.ceil() (向上取整，往最大了取值)
            let totalPage = Math.ceil(this.totals/this.pageSize);
            //当删除最后一页的最后一条数据，并且不是第一页，就让当前页-1
            if(this.currentPage==totalPage && (this.totals-1)%this.pageSize==0 && this.currentPage!=1){
              this.currentPage = this.currentPage - 1;
            }
            this.$message.success("操作删除成功")
            this.getTableData()
          } else {
            this.$message.error("服务器异常，删除失败")
          }
        }).catch(res => {
          this.$message.error("网络异常，请查看您的网络")
        })
      }).catch(() => {
        this.$message.error("已取消删除")
      });
    },

    //4.批量删除相关方法
    //4.1.选项改变时触发
    handleSelectionChange(val) {
      this.sels = val

    },
    //4.2.批量删除
    handlePatchDel() {
      this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        let ids = this.sels.map(obj => obj.id)//获取批量删除对象的id，组成数组。
        this.$http.patch("/employee", ids).then(res => {
          if (res.data.success) {
            //计算总页数  Math.ceil() (向上取整，往最大了取值) Math.floor() (向下取整，往最小了取值)
            if (ids.length >= this.employees.length && this.currentPage!==1) { //页数合理化
              let number = Math.ceil(this.totals / this.pageSize) - (Math.floor((ids.length - this.totals%this.pageSize) / this.pageSize) + 1);
              if (number < this.currentPage) {
                this.currentPage = number
              }
            }
            this.sels=[]
            this.$message.success("操作批量删除成功")
            this.getTableData()
          } else {
            this.$message.error("服务器异常，批量删除失败")
          }
        }).catch(res => {
          this.$message.error("网络异常，请查看您的网络")
        })
      }).catch(() => {
        this.$message.error("已取消批量删除")
      });
    },

    //5.添加和修改相关方法
    //5.1.点击添加弹出对话框
    handleAdd() {
      this.title = "添加数据"
      this.saveFormVisible = true //打开模态框
      this.saveForm = {
        id: null,
        username: '',
        phone: '',
        email: '',
        password:'',
        age: null,
        state: 1,
        departmentId: null,
        roleId: null,
      }
      this.getDepartmentList() //下拉框显示所属部门
      this.getroles()//下拉框显示角色权限
    },
    //5.2.点击修改弹出对话框
    handleEdit(row) {
      this.title = "编辑数据"
      this.saveFormVisible = true //打开模态框
      this.saveForm = Object.assign({}, row)
      this.getDepartmentList() //下拉框显示所属部门
      this.getroles()//下拉框显示角色权限

    },
    //5.3.提交表单数据操作数据库
    saveSubmit() {
      this.$refs.saveForm.validate((valid) => {
        if (valid) {
          this.$http.put("/employee", this.saveForm).then(res => {
            if (res.data.success) {
              this.$message.success("操作" + this.title + "成功")
              this.getTableData()
              this.saveFormVisible = false
            } else {
              this.$message.error("服务器异常" + this.title + "未成功")
              this.saveFormVisible = false
            }
          }).catch(res => {
            this.$message.error("网络异常，请查看您的网络")
          })
        } else {
          this.$message.error("您有必须填写的数据未填写")
        }
      })
    },

    //下拉框获取t_department表所有数据
    getDepartmentList() {
      this.$http.get("/department").then(res => {
        this.DepartmentList = res.data
      })
    },
    //表单弹出时：清除校验规则
    handleDialogOpen(){
      if (this.$refs.saveForm) {
        this.$refs.saveForm.clearValidate();
      }
    },
    //获得焦点清除当前校验
    clearCurrentValidate(field){
      this.$refs.saveForm.clearValidate(field);
    },

    //下拉框获取t_shop表所有数据
    getroles() {
      this.$http.get("/role").then(res => {
        this.roles = res.data
      })
    },

  },
  mounted() {
    this.getTableData();


  }
}

</script>

<style scoped></style>
